Читать книгу Henley's Formulas, Recipes and Processes (Applied Chemistry) - Various - Страница 693
Purifying Rancid Castor Oil.
Оглавление—To clean rancid castor oil mix 100 parts of the oil at 95° F. with a mixture of 1 part of alcohol (96 per cent) and 1 part of sulphuric acid. Allow to settle for 24 hours and then carefully decant from the precipitate. Now wash with warm water, boiling for 1/2 hour; allow to settle for 24 hours in well closed vessels, after which time the purified oil may be taken off.
